Improvement in lamps



UNITED STATES PATENT OEEICE.

ELI H. GREEN, OF BALTIMORE, MARYLAND.

IMPROVEMENT INv LAMPS.

Specification forming part of Letters Patent No. 49,752, dated September 5, 1865.

To all whom it may concern:

Beit known that I, ELI H. GREEN, of Baltimore, in the county of Baltimore and State of Maryland, have invented a new and Improved Lamp; and I do hereby declare that the following is a full and exact description thereot, reference being had to the accompanying drawings, making part of this specication Figure 1 being a central vertical section ot the lamp; Fig. 2, a plan of the body thereof, Fig. 3, a side view ot' a part detached.

Like letters designate corresponding parts in all ot' the figures.

My lamp is intended for general use, either for burning lard and common oils or coal-oil. Itis also intended to be unusually strong and durable, so that it may be used even roughly or carelessly without danger, rendering it peculiarly suitable for outdoor use-around railroads and shops, for instance. No chimney is used with the lamp, evenin burning petroleum.

For the cheapest, strongest, and most durable lamp I make the body A and base or standard B ot' cast-iron, each, or even both, being cast in one piece, as shown in the drawings. It can 'be iinished in any style by bronzing, japanning, Ste. The body A is made unusually low from top to bottom, and the capacity is made sufcient by making it broad from side to side, as seen in Fig. l. In this way I can use a very short wick, and I do not have to raise the oil tar by capillary action. It also enables me to burn lard and other solid fats by locating the burner closely thereto.

1n carrying out my full purpose, to make a lamp a very convenient portable one, I employ a projecting rod or tube, D, extending centrally upward from the lamp-body A several inches, as shown in Fig. 1, and I generally terminate this with a handle or equivalent holder, Gr, by which the lamp may be carried in the manner of alantern. Andin order to protect the hand in carrying, and also to prevent any smoke, which any lamp is liable occasionally to make, from soiling the ceiling of the room, I also make use of a concave shield, H, situated at the top ot' the rod or tube D, and of Vsufficient diameter to fully cover the lamp burner or burners below, substantially as repsented. The handle Gr is generally made 1u the form of anut, to secure therod, cap, or shield H upon the rod or tube D. This tube D `tits at its lower end down into a socket, d, on the top ot' the lamp-body; and there is a central tube, t, in the lamp-body, forming a vertical aperture through the same continuous with the tube D and the hollow base B of the lamp; then a rod, C, extends down through the tubes D and t and the hollow base B, and through a plate or bar, F, therein, below which a nut, e, and screw-thread on the rod join all ot' the said parts of the lamp securely together, substantially as shown. i

The top a of the lamp-body A is tlat and solid, generally ot' one piece with the rest ot body. The oil is introduced through a hole in the top, closed by a screWstOpper, Z.

The burner or burners (there being three shown in the drawings) I construct as follows: The wick-apertures 1J, Fig. 1, are simple slots ot' the proper size and shape made in the top a ofthe lamp-body. On each side of the wickslot a burner-lip is situated, ot" which one-say the inner one, f-may be cast or attached immovably on the top a, and the other one, It, be adjustable toward or from the fixed lip by means of adj Listing-screws fi t' or their equivalents. For cheap and simple lamps both lips may be iixed and the adjusting-screws be dispensed with. These lips do not touch each other; but there are open spaces at the ends, and the wicks come up between them. Where there are several burners the stationary lips may be a continuous ange on the top of the lamp, as indicated in Fig. l', and by black and red lines in Fig. 2; or they may be separate and distinct, as indicated by black lines only in Fig. 2. They are made ot' metal and pretty thick, so as to retain the heat of the burner and keep up the temperature of the flame. An aperture, r, Fig. 3, through one of the lips serves to introduce a pointed instrument for adjusting the wick. Thus every part is made simple and cheap. I also add numerous other pert'orations 1' r, as seen in the same figure, to admit air to the wick for supplying the ame, generally through both lips.

In addition to the perforations,or sometimes even as a substltute for them, I make transverse notches s s, Figs. 2 and 3, in the upper edges ot' the burner-lips, for admitting more air below the tlame against the wick, the metal between the notches keeping up the temperature, and thus raising the iiame higher above the burner and affording room for a freer supply of air to support the combustion. This construction enables me to burn even petroleum Without a chimney. The air is also admitted between the burner-lips at their ends or side edges.

Appendages of other forms may be applied to the burner, as shown at n n, Figs. l and 2; but generally they are not necessary nor desirable.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The mode of constructing the lamp-body A, base B, and projecting rod or tube D, sub- 

